Concurrency Control and Transaction Management in a Distributed Database Management System (DBMS)

摘要

The present invention relates to a concurrency control and transaction management method for maintaining consistency of data and improving reliability in a distributed DBMS of an electronic exchanger as a distributed system, and its effect is as follows. First, it manages and manages the retrieval and modification of related data used for the function and service processing of the exchange system to prevent data inconsistency that may be caused by abnormal program termination or system failure, and to maintain data consistency So that the reliability of the exchanger system can be improved by operating the exchanger with correct data. Second, by providing concurrency control during the search and modification of related data distributed among several processors, data being searched and changed by other transactions are affected, thereby preventing inconsistency of data and maintaining consistency of data The high reliability of the exchanger system can be maintained.